COULTER AND ROSE—NORTH AMERICAN UMBELLIFERAE. 47 
nm wg 
8. Eryngium aquaticum L. Sp. Pl. 1:232. 1753. 
E. virginianum Lam. Eneyel. 4:759. 1796 ( fide Britten & Baker, Jour. Bot. 88: 
243. 1900. ) 
E. praealtum Gray, Bost. Jour. Nat. Hist. 6:210. 1850. (PL. Lindh. ) 
Slender, 3 to 9 dm. high, branching above; basal and lower cauline 
leaves linear to oblong- lanceol ite (petioles sometimes 3 dm. long), 
entire or with remote small hooked teeth; upper cauline leaves sessile, 
spiny-toothed or laciniate; heads ovate-oblong (12 mm. long), with 
lanceolate spiny-toothed or entire reflexed bracts mostly as long as the 
head or longer, and bractlets with 3 spiny cusps, the middle one largest; 
fruit scaly. with prominent lanceolate acuminate-cuspidate calyx-lobes 
equaling or exceeding the bractlets. 
Type locality, ** Virgink 
Wet places, New Jersey to Florida, and west to ‘Texas, 
Specimens examined ¢ 
New Jersey: Toms River, //ollick, August 15, 1885; Salem County, LHolmes, Sep- 
tember 9, 1890, 
Detaware: ENendale, Canby, September 16, 1891. 
Marynanp: Curtis Creek, Taylor, September 16, L891. 
Disrricr or CoLtumpBia: Eastern Branch, Vasey, in 1878, 
Vircinta: Alexandria, Vasey, in 1874 and 1875; Cape Charles City, Canby & 
Rose 821, September 25, 1894. 
Nortu CAROLINA: McCarthy, in 1884: near Wilmington, Pemey, in 1900, 
SourH CAroLiIna: Copper River swamp, Ravenel (typeof 12. praealtumn); Bluffton, 
Mellichamp (representing I. pracaliuim). 
We have been able to discover no difference between F. virginianeun and 
Ky. pracaltun Gray, the latter having been established upon unusually stout and 
broad-leaved forms from the swamps of South Carolina. 
Eryngium ravenelli Gray, Bost. Jour. Nat. Hist. 6: 209. 1850. 
(Pl. Lindh.) 
Slender, from 4.5 to 9 dm. high, branching above; leaves linear, 
elongated, nearly terete (conduplicate), obscurely denticulate, the 
lower ones from 3 to 4.5 dm. lone; heads as tn /. mettaners, with 
lanceolate spiny-toothed or entire reflexed bracts as long as the head, 
and bractlets with 3 strong and equal spiny cusps: fruit with short- 
mucronate calyx-lobes, and long rigid styles. 
Type locality, ‘tin flat and damp pine land, Black Oak, St. Johns, 
Berkeley district, South Carolina;” collected by Lavenel; type in 
Herb. Gray. 
Wet pine barrens, South Carolina and Florida. 
Specimens eramined: 
Sourw Carouina: Near Aiken, Ravenel, in 1849 and 1869. 
Fioripa: Chapinan (described as 2. virginianum); St. Marks, Wakulla County, 
Nash 2537, September 3, 189. 
10. Eryngium mettaueri Wood, Class-book, ed. 2, 379. 1860. 
Stem erect, simple, 12 to 1S dm. high, branching at top: stem leaves 
linear to linear-lanceolate, entire or sparingly spinose-toothed at base, 
